Does Spectran use the same windowing function as Spectrogram ? Depending on which window is used, the effective bandwidth of a spectrum display can be from one to three FFT bins, trading off display
Dear Andy & Group, With a 1Hz Bandwidth, isn't it rather difficult to find the signals in the first place? How do you tell if what you are receiving is a signal or not? It seems to me that some radi
RZCW = Return to Zero CW (shall we use this name for the three-frequency CW ?) I have just put a couple of screen snapshots of the reception of Marco's new beacon together with some considerations ab
Hi all, I have just put a couple of new images of the reception of the 3-level Marco's beacon on my Web site, that show that perhaps the 30-second dot/dash duration can be shortened. The URL is : htt
The version beta 3, build 262 of Spectran is now availbale at the URL : http://www.weaksignals.com It is a spectral analysis software, still in beta, expecially tailored for EME and VLF work. Freewar
Petr, the thanking is always welcome, but really not needed. After all, the whole spirit of the ham/internet community is that each individual should give his little contribution, be it a program, a
I have put an image of the reception of Marco's 2 mW beacon at the URL : http://www.weaksignals.com/images/ik1odo_a_2mw.gif QRN was rather high, S9 with frequent static crashes going up to S9+30 dB T
The TS-850 readout resolution is 10Hz. However the tuning appears 'smooth' between the digits. When I set the receiver for slow CW the [snip] What happens when you press the 'Fine' button on the num
I think the tuning step is 1Hz all the time. All the FINE control does is change the tuning rate of the tuning knob to the display. The display shows 10Hz resolution whatever you do - unless there i
[snip] The main disadvantage is its speed varying with other applicatiions running on the computer as one of the great things about QRSs is that you can multi-task - I once had a QSO during which I
The general consensus of opinion seems to be that if you are going to use "machine" modes, BPSK has considerable superiority over any form of slow CW for the kind of very weak signals often encounte
......... The only part the brain is required to play in this process is to interpret the trace as letters and numbers - most of the hard work has been done already. I have to disagree. The brain ha
[snip] There seems to be no appreciation on this newsgroup of the real value of coherent detection - that is, having phase information available when the signal is decoded and coherently locking to
Greetings: Quote I don't know if this has been tried before, but I just tried it and it worked nicely. [snip] I recorded some 578 seconds of audio to hard disk at 7200 samples per sec. [snip] Seems
There has been some stinging comment on here in recent days on 'dyed in the wood' CW operators, which perhaps I have to admit to being. The implication is that if you persue such modes you are a lit
Computer sound cards did not exist when Bill started his work, since they were not available they were not used. Having been around A/D converters for many years, the superlative of "superb A/D conv
Hi Alberto I found argo to be very sensitive and easy to use. When watching VE1ZZ here I found that I had to reduce the sensitivity to one or else the traces were thick and start and stop of dots an
[snip] Interfacing via the parallel port is easy enough in DOS and WIN 3.1 but in WIN9x it is a bit hit and miss depending on the ports implementation. 16 bits via the serial port beeds really three
[snip] Downloaded Argo Beta and ran it from 0001 onward. I can see a lot more Loran lines than with Spectran. I can also see VE1ZZ better and although 'O' for only part of the time I can always tell
Hi all, strong 'O' signal from G3LDO this evening at about 23:25 UTC here in Italy, using a TS850, with the HF dipole for 20 meters !!! I captured a couple of images to show the clarity of the signal
